Description B&K Mueller -40 to 194 deg F temperature range, full port, packing gland, PTFE seat and packing, chrome-plated brass ball and stem, solder ends comply with ANSI B16.18, IAMPO IGC 157 certified, IAPMO listed to cUPC, certified to NSF 61-G. Full port for maximum flow rate. Full port for maximum flow rate. Packing gland, blowout proof stem design. Rust-resistant heavy-duty handle with vinyl grip.